Nonlinear Modeling for Regenerative Cutting with Forced Vibration

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" Nonlinear Modeling for Regenerative Cutting with Forced Vibration "
Xing, Siyuan Luo, Albert C. J.

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	1052160
Doc. No	:	TL51277
Main Entry	:	Xing, Siyuan
Title & Author	:	Nonlinear Modeling for Regenerative Cutting with Forced Vibration\ Xing, SiyuanLuo, Albert C. J.
College	:	Southern Illinois University at Carbondale
Date	:	2019
Degree	:	Ph.D.
student score	:	2019
Note	:	116 p.
Abstract	:	In this dissertation, a 2-DOF nonlinear regenerative cutting model with forced vibration from the workpiece oscillation is established. The periodic motions in such a nonlinear time-delay system are studied through a semi-analytical method. Such a method constructs an implicit mapping structure for periodic motions through the discretization of the governing delay-differential equations. The stability and bifurcations of periodic motions are predicted from the eigenvalue analysis. The periodic motions varying with excitation frequency in linear-structural and nonlinear-structural machine-tool systems are presented. The rich dynamics of the machine-tool systems are discovered. The numerical simulations of stable periodic motions are carried out from analytical predictions. Chatter may not be the chaotic motions; in fact, it can be large- amplitude periodic motions (stable and unstable). The phase difference between horizontal and vertical displacements can be used to detect chatter in machining process.
Descriptor	:	Engineering
	:	Mechanical engineering
Added Entry	:	Luo, Albert C. J.
Added Entry	:	Southern Illinois University at Carbondale